I don't know a lot of the lyrics, but I do know that it is an older country song. The beginning is pretty much just the guitar and its a male vocal. Some of the lyrics are:
In your arms, I'm the proudest man alive...

And I do know that the chorus sounds somthing like this:
"cause I'm just one heart, one love, too late"

Can anybody think of what this song may be, it's been driving me crazy?! Thanks!